I feel like the author doesn't really understand the science behind his concepts or base it on something real, but the take on time trial was kinda novel. I wasn't a fan of one of the revelations at the end because it made me feel like I wasted my time reading this, but as I write this review I've just thought about how this revelation and ultimately the resolution at the end of the novel is very similar to what happens in the TV show Dark which I think is masterpiece. So I guess it's the journey that makes the difference and I didn't really find it as compelling as in Dark. The book is really well written though and has this haunting undertext woven through in descriptions of scenes. Overall I think within time travel media this book is probably solidly middle of the pack.
Also this blurb:
“I promise you have never read a story like this.” —Blake Crouch, New York Times bestselling author of Dark Matter